Roll changer



July 2,1935. l B. C. WHITE 2,006,754

ROLL CHANGER Original Filed June 20, 1923 4 Sheets-Sheet l QQ'.. (166 /6s f 125 I IQ,

Snventor July 2, 1935.

B. C. WHITE ROLL CHANGER Original Filed June 20, 1923 4 Sheets-Sheet 2July 2, 1935. 1 B. c. WHITE 2,006,754

ROLL CHANGER Original Filed June 20, 1923 4 Sheets-Sheet 5 (IttornegSJuly 2, 1935. B. c. WHIT 2,006,754

ROLL CHANGER Original Filed June 20, 1923 4 Sheets-Sheet, 4

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M I Y 30 3 42 36 32 v 43 1 4&4

(Ittorneg 5 Patented July 2, 1935 UNITED STATES PATENT OFFICE ROLLCHANGER Original application June 20, 1923, Serial No. 646,592, nowPatent No. 1,855,503, dated April 26, 1932. Divided and this applicationMarch 23, 1932, Serial No. 600,610. Renewed November 13, 1934 6 Claims.

VThis invention relates to certain improvements in mechanisms forfeeding webs to printing machines and controlling the feed of the websfrom web rolls, and is a division of an application of Bruce Clarkwhite, serial No. 646,592, sied June 20, 1923, on which Patent No.1,855,503 was granted on April 26, 1932.

The present invention consists in certain novel arrangements of the rollsupporting devices by which a plurality of web rolls may be supportedand moved from loading to running position withinrelatively smallconfines, and the invention further consists in certain novelarrangements in combinations which will be fully described in connectionwith the accompanying drawings and such features pointed out in theclaims hereunto annexed.

In these drawings,--

' -Figure 1 is a vertical section ofA a web roll feedying and changingdevice adapted for a three roll press, each deck being shown with arunning roll and a spare roll in different positions; VVAligure 2 is ahorizontal section on line 2--2of Figure 1;

Y, posed relation, but it will be understood that this showing is onlyillustrative and that these roll changers or one of them may be used inother positions and arrangements.

f Generally speaking, the novel features of the present inventionconsist in the provision of a 40' pair of spaced roll holding headsmounted in bearings without a center shaft, so as to leave a clear spacebetween the heads, these heads being provided with bearings forsupporting a spare roll and a running roll.

These roll supporting bearings a-re arranged or positioned in the headsso that the distance from the axis of the heads to the center vof theroll bearings is less than the radius of a full roll of paper. That is,the changer is capacitated `to support a roll of paper the radius ofwhich is greater than the distance between the centers of the web rollsupports and the axisV of the head, so that the periphery of a standardfull roll of paper may extend inwardly beyond the axis of the heads,such construction permitting the rotating of the heads and the rollscarried thereby in relatively small connes widthwise of the mechanism.

The specific construction and arrangement of the parts may be somewhatvaried. In the machine chosen to illustrate the invention there areshown three roll changers, a bottom changer A, a middle changer B, and atop changer C arranged at the end of a three roll or sextuple press, not

shown. y

The mechanism is suitably supported, as from a base plate l, to whichare secured upright front and rear frames 2, 3 and a support 4 for thelower spare roll. These frames are or may be tied together by means ofouter cross-ties 5, middle cross-ties 6, and inner cross-ties 1, and theouter cross-ties 5 mayY carry extension brackets 8 for temporarilysupporting fresh paper rolls marked 9, and a fresh paper roll AIll mayalso be placed on the support 4.

Referring to the A changer, a fresh roll, of standard size IL'has beenrolled inward sufficiently to be secured in the roll holders, which aremarked l2, which are shown in the form of a pair of spaced heads. Theseheads I2 are journalled upon non-rotatable journals 24 andare heldagainst endwise movement thereon by means oi a flange 25 outside thehead and a collar plate 2 6 inside the head, as best shown in Figure 4,These journals 24 are fitted to slide freely endwise in hubsZ'l'projecting inwardly on each side from the frames 2 and' 3, but areprevented from rotating therein by a key 28 which has sliding engagementin a keyfway 29 of the bearing, best shown in Figure 2, so that thejournals may be moved endwise in the frame hubs by means of a screw 30to which is attached a hand-wheel 3|,

A sprocket-wheel 32 is also secured to the screw 30 and has asprocket-chain 33 trained about it and valso about a sprocket 3 4 oneach end of a shaft 35 located below the heads, as shown in Figures 1and 2. By this means, the operator in turning either of the hand-wheels3l will rotate both screws 30 in the same direction in such a manner as`to move both journals 24 andiconsequently both heads and the rolls ofpaper mounted Y ing or journal without a cross-shaft between them,

so that the Yperiphery of a full paper roll positioned in the heads `mayextend inwardly beyond the Vhead axis", as shown in Figure 1.V Thisresults, as hereinafter referred to, in requiring a much smaller spacefor rotating the heads, so that the heads andthe paper rolls carriedYthereby may be operated in a very narrow space considered widthwise orkhorizontally of the roll msm- The heads I2 are rotatablymountedon theirchanger mecha- Ybearings and to effect the rotation ofthe heads they areprovided with heavy spur-gears having external gear teeth which Amesh inthe toothed pinions 38 keyed on a cross-shaft 39Ylocated to one side ofthe heads. Thisfcross-shaft' has keyed thereto a worm-wheel 40 and theshaft is supported Vin bearings 4I upon the inner cross-tie 1, beforereferred to, and the shaft is further supported in a journal 42 of thegear box 43,V shown Vin Figure 4. Theworm-wheel 40 engages with va Wormd'formed on a shaft 44, which is driven through a clutch mechanism or inany other suitable manner to effect the rotation'of the heads whendesired, a detail description of Vthis being omitted as unnecessary foran understandingof the present invention, this drive, however, in thepresent instance being from a shaft 18 driven from the press.

'I'he heads I2, in accordance with the invention, are providedVwith'supports for supporting a spare web` roll of paper `and a runningweb roll. 'I'hese supports may Vvary in construction'but they will belocated so that their centers, as shown in Figure l, are sospacedrelatively to the axis of the heads that they willsupport a rollof paper whose radius is greater thanV the distance between the centersof Vthe roll supports and theaxis of the heads, so that the periphery ofVa fresh rollof paper may extend inwardly beyond the head axis.

Inthe particular instance illustrated, the roll supports are positionedin vthe heads ,diametrically' opposite each other and adjacentthe'periphery of the heads.

These supports may be of various characters,

` but in the particularconstructionshown they are capacitated to engagean ironvpipe or core, marked I3 in dotted lines in Figure,2',`on which aweb roll ofV paper may be wound. In the particular con-l structionshown, these supports include taper plugs I4 which may be forced intothe ends of the tube I3'by'meanskof/screws' I5 and hand-wheels I8,whichV have their bearings in plate I1, see Figures'2 and 4. Theseplugs, as shownin Figures 2 'and4g are preferably rigidly but rotatablymounted in the reels, all spring and likeresilient constructionsv havingbeen omitted. c l

.,fsuitable roll controlling devices may be emplcyed, such being shownin the form of belts 500, i arranged on each side of the vrroll supportfor controlling the unwindingV of the roll, and pasting and websevering. devices for Jjoining a new webjtoan expiring roll maybe usedif desired, the pasting mechanism being shown as a roll V|30 andthe websevering mechanism asa knife I33 inFigure 1. Y

'It will beY seen' *that with the arrangement adopted the roll `changermechanism may be operated in a very small compass widthwise orhorizontally of the mechanism to move a roll from loading to pasting,running and discharge positions. While the `arrangement has been shownin its preferredA form, it will be understood that certain changes'maybe made in regard to its form, details of construction and generalarrangement without departingv from the invention as defined in theappended claims.

What is claimed is: n y Y 1. In a web roll changing device, thecombina,- tion of a pair of independent rotatable web roll supportsspaced apart in separate bearings without aicenter shaft, web rollholders held at a fixed Y distance from the axis of the supportsfor'supportingV a running web roll and a spare web roll,

said roll Vholders being so located relatively to eryof a full roll ofpaper may extend inwardly to and beyond the axis of the supports, and

means foi-rotating Ithe supports,` and for moving the roll axially.

2. In a web roll changing device, the combina.-

tion of 4a pair of independent rotatable web roll supports spaced apartin separate rbearirzlgs with? out a center shaft, web rollholdersheldfatra fixed distance from the Vaxis of the Supprtsforsupporting a' running web roll and a sparervy'ebA roll, said rollholders being so located relatively Y to the axis of the'supports thatthey support a roll of paper whoseradiusis greater than the distancebetween the centersof Vthe roll held-v ers and the axis of the supports;so thatrthe periphery of a full roll `of paper may extend inwardly toand beyond the axis of the suDPQts, means for effecting a relativesidewise movement of the supports, and means for rotatingi'the supports.

'3.' In a roll changing deviceythe combination fof aVv pair of'rotatable heads spaced apart in` rate bearings without acenter sha-ft,holders secured in the heads adjacent the peripheries thereof forsupportinga running web roll anda spare web roll, saidroll'holdersbeing: sov

4. yIn a roll changing device, Athecombinationk of a pairof rotatableheadsfspacedapart 'inseparate bearings without a center. shaft, web ollholders mounted in rigid bearings 'in the "heads andadjacent theperipheries lthereof forsiip-y porting a running wehroll .and a spareweb rll, said roll holders being so' Ylocated,'relatively[to the axis ofthe heads thattlie peripher'y ffa. full .web roll will yextend to apointibeyo'ndY axis, means for effecting aA 'relatively sidewisemovement of the heads, meansfor moving fthe' roll holders axially of theroll to hold release the'roll,v and means for rotatingthelf ds.

5.,v In a device' for supportingfalplu'ra'lit .of web rollsV fromwhichwebsare fed successively to a machine, a pair of roll holdingheadsfrtatable on separate bearings axially"ali`gned`and movableVaxially in unison, and a pair of rollvsp-'j ports for each head adaptedto engage'thegc tially common to the axis of the head;v :i j

'meV

6. In a device for supporting a plurality of web rolls from which websare fed successively to a. machine, a pair of roll holding headsrotatable on separate bearings axially aligned and movable axially inunison, power operated means for rotating the heads, and a pair of rollsupports for each head adapted to engage the cores of the web rolls;said supports on each head being oppositely disposed and spaced apart adistance less than the diameter of a full web roll and having their axesin a plane substantially common to the axis of the head.

MARIE LOUISE WHITE, Eecutn'a: of the Estate of Bruce Clark White,

Deceased.

